Lubricator.



H. G. HAUPT 6L C. K. CLAUS.

LUBRICATOR.

APPLICATION FILED FEB. I2. I9I5.

l 169,482. Patented Jan. 25, 1916.

i g'l//l/l/ linafter set forth in and falling within HARRY G. HAUPT AND CHESTER K. CLAUS, F MISSOLA, MONTANA.

LUBRICATOR.

Specification of Letters Patent.

Application lerl February 12, M15. Serial No. 7,783.

To @ZZ whom 'it' may concern:

Be it known that we, HARRY G. HAUPT and CHESTER l. Grens, citizens of the United States of America, residing at Missoula, in the county of Missoula and State of Montana, have invented new and useful improvements in Lubricators, of which the following is a speciiicat-ion.

rlhis invention relates to improvements in lubricating devices and has particular application to a device for lubricating the cylinders of compound pumps and analo gous machines. l

ln carrying out the present invention, it is our purpose to provide a device of the class described whereby the high pressure cylinder of the pump will be supplied with lubricant at every stroke of the piston so as to maintain the cylinderI properly lubricated while the pump is working and prevent rapid wear of the piston rings and whereby the lu ricant will be delivered to the high pressure cylinder irrespective of the pres sure of the air delivered to the high pressure cylinder from the low pressure cylinder of the pump.

t is also our purpose to provide a device of the class described which will operate eiiiciently and effectively for its intended purpose, which may be manufactured, marlteted and installed at a minimum expense, and whereby both cylinders of the pump will be thoroughly lubricated while the pump is in service.

`With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts herethe scope or" the claims.

1n the accompanying drawing;

Figure 1 is a longitudinal sectional view through a lubricating device constructed in accordance with the present invention. Fig. 2 is a cross sectional view on the line 2--2 of Fig. 1. Fig. 3 is a view in side elevation of a compound pump showing the connections between the pump and my improved lubricater.

`Referring now to the drawing in detail, 1 designates a casing formed centrally with a longitudinal oil passage 2 and having one end thereof formed with an outwardly extending axial nipple 3 exterior-ly screwthreaded and the opposite end formed with a socket l coaxial with the passage 2 and having the side wall screwthreaded. The

'the outer end of the nipple wall of the passage 2 contiguous to the bore of the nipple 3 is ciroumferentially enlarged and at the junction of the circumferentially enlarged portion with the major portion of the passage is formed avalve seat 5 provided with grooves 6, while threaded into the outer end of the nipple 8 is a circular collar 7 having the inner end thereof formed to provide a valve seat S and interposed between the valve seats 6 and 8 is a ball valve 9 adapted, when in one position, to engage the valve seat 8 and, when in another position, to engage the valve seat 5. At the junction of the bottom wall of the socket 4 with the oil passage 2 is formed a valve seat 10. 11 designates a circular disk of a diameter equal to that of the casing 1 and formed with an axial opening 12.

Formed on one side of the disk 11 coaxial with the opening 12 therein is a nipple 13 threaded into the socket l and forined on the opposite side of the dislz 11 and projecting outwardly therefrom in a direction 0pposite from the nipple 13 is a nipple 14 alining axially with the nipple 13 and the opening 12. The inner wall of the nipple 13, adjacent to the dislr end of the nipple is formeel to provide a valve seat 15 Aspaced apart from the valve seat 10 and interposed between the valve seats 10 and 15 is a ball valve 16 adapted, when in elevated position, to engage the seat 10 and when in lowered position to engage the seat 15. The valve seat 15 is formed with one or more grooves 17.

Extending laterally from the casing 1 and in open communication with the oil passage 2 therein is a connecting nipple 18.

19 designates a second casing formed with a longitudinal oil passage 2O and formed on one end of the casing 19 and extending outwardly therefrom coaxial with the passage 2O is a nipple 21 while formed on the remaining end of the casing 19 and projecting outwardly therefrom is a nipple 22 alining axially with the passage 20 and the nipple 21.

Adjacent to the nipple 21 the wall of the passage 20 is circumferentially enlarged to provide a valve seat 23 and threaded into 21 is a circular ring 2d having the inner end thereof formed to provide a valve seat 25 spaced apart from the seat 23.

interposed between the valve seats 23 and 25 is a ball valve 26 designed to engage the seat 25 when in one position and the seat 23 when in the opposite position.

Extending laterally from the casing 19 and in open communication with the lubricant passage 20 is a connecting nipple 27 and coupled to the connecting nipple 27 is one end of a conduit 28, the opposite end of such conduit being coupled to the conn necting nipple 18 on the casing 1.

In practice, the nipple 14CV on the casing 1 is connected to the high pressure cylinder'of the air pump, while the nipple 22 on the'casing 19 is connected with the low pressure cylinder of the air pump. rEhe nipples 3 and 21 on'the remaining ends of the respective casings are connected, respectively, with suitable oil reservoirs or containers. AS is 4well known to those acquainted with the operation of compound air pumps, air is delivered from the low pressure cylinder to the high pressure cylinder under pressure on the suction stroke of the high pressure piston, while when the high pressure piston is making its delivery stroke the low pressure piston is drawing in a charge of air. On the compression stroke of the high pressure piston the ball valve 16 is forced upwardly against the seat 10 and as the low pressure piston is on its suction stroke, the pressure below the ball valve 9 is relieved through the conduit 28 and passage 20 in the casing 19, so that the ball valve 9 drops against the seat 5. When the ball valve 9 disengages the seat 8 the oil in the reservoir connected with the nipple 3 flows past the` ball lvalve 9 through the groove 6 in the seat 5 into the passage 2. Simultaneously with this movement of the i' ball valvev9 the ball valve 26 disengages the seat 25 and engages the seat 23 and as the low pressure piston is on its intake stroke oil is drawn from the reservoir connected with the nipple 21 past the valve 26 through a groove 29 in the valve seat 23 and the passage 20 into the low pressure cylinder. ,Vhen the movements of the pistons are reversed and the high pressure taking air from the low pressure cylinder under the action of the low pressure piston, the ball valves 9 and 26 are forced upwardly against the respective seats 8 and 25 under the action of the air forced into the passages 2O and 2 by thev low pressure piston, thereby cutting of communication between the oil passages 2 and 20 and the respective oil reservoirs. As the air flows through the conduit 28 into the passage 2 from the low pressure cylinder, oil previously delivered to the passage 2 is forced past'the valve 16 and through the groove 1f? in the seat 15 and the nipple 14 into the high pressure cylinder. f

F rom the foregoing description taken in connection with the accompanying drawing, the construction and mode of operation of be thoroughly lub our improved'lubricator will be readily apparent.

lt will be seen that we have provided a lubrieator whereby the high pressure cylinder of an air pump or analogous engine will 1icated at each intake stroke of the piston while the low ressure cylinder will be similarlylubricated, thereby preventing rapid wear of the piston rings and enabling the compressor to run smoothly and evenly.

We claim: Y Y

1. A. lubricating device for compound pumps comprising a casing connected to the high pressure cylinder and formed with an oil passage, a casing connected to the loar`r pressure cylinder and formed with an Oil passage, a conduit establishing' communication between said passages and connected with the respective passages between the ends thereof, a valve inV the cylinder end of the first passage adapted to close on the discharge strokeof the high pressureV piston, a valve in the other end of said passage adapted to open on the discharge stroke of vthe high pressure piston and the intake stroke of the low pressure piston. l

2. A lubricating device for compound pumpscomprising a casing connected to the high pressure cylinder' 'and formed with an oil passage, a casing connected to the low pressure cylinder and formed with an oil passage, a conduit establishing communication between said passages and connected i' with the respective passages between the ends thereof, a valve inthe cylinder end of the first ypassage adapted to close on the Vdischarge stroke 'of the high pressure piston, a valve in the other end of said passage adapted to open on the dischargeV stroke of the high pressure piston and the intake stroke of the low pressure piston, and a valve in the outer end ofthe passagev in the second-named casing adapted to closeron the compression stroke of the low pressure piston and open on the intake stroke of such piston.

'3.151 lubricating device for compound` pumps comprising a casing'connected with the high pressure cylinder and having a` lubricant passage therethrough, a Vvalve in said passage adapted to open on the suction stroke of the high` pressure piston and close on the compression stroke thereof,a connec-V tion between said casing and the low pressure cylinder, and a second valve in said passage adapted to close on the compression stroke of the low pressure piston and open on the intake stroke of said last piston.

4. A lubricating device for 4compound pumps comprising a casing, connections between said casingand the high and low pressure cylinders respectively of the pump, a valve in said casing under the control of the high pressure piston adapted to close when said piston is on its comnresson stroke and open When said Dston s on its suction stroke, and a Valve n said casing under the control of the 10W pressure piston and adapted to open when the 10W pressure piston s on its suctlon stroke and close when said piston s on lts compression stroke.

In testimony whereof We ax our signatures n presence of two Witnesses.

HARRY (Jr. HAUPT. CHESTER K. CLAUS. Witnesses:

L. E. HooN, HARRY L. JAMESON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

